Furnace wall



. bucks Patented deine il, l926. i 1

attesta "sani-as Aea'ran'r oil-rien ernennen n. erneuern', on cmcneo, rumors, lassrenoisc To Lieux rum-BRICK ARCE COMPANY, 0E

CHICAGO, ILLINOIS.

rnnnaon wenn.

4-sanitationand December zo, 1924. serial no. man.

My invention provides certain portant improvements in walls that will be subject to high heat temperatures, and, generally stated, the invention consists of the novel devices and comhighly imbinations or devices hereinafter described and dened in the claims.

Particularly, `the invention' relates to wall structures comprising what are termed permanent outer walls and replaceable inner' walls, and which latter are subjected to intense heat, so that they will burnout more rapidly than the outer wall and, hence, require frequent replacement in whole or in part'.

ln accordance with this invention, i theA inner. and outer walls are interlocked or tied together so that they cannot spread or separate laterally butl are so connected that the two are ca ableo independent vertical expanding;v an contractinginovements due to the different temperatures to which the twowalls are subjected and to their different coeicients of expansion. This structure also' lends'itsell particularly to a wall structure in which a large air space may be left between the inner and outer walls andsuch air space used for the circulation of air to-reduce the temperature of the inner wall and topreheat air taken into the furnace to support combustion.

In the accompanying drawings, which illustrate the inventlon, like characters indicate lilreparts throughout the several views.

Referring to the drawings:

Fig. l is a fragmentary view partly 1n plan and partly in horizontal section, showing a portion of a wall constructed in accordance with this invention; and

Fig. 2 is a vertical section taken approxirnately on the line' 2`2 of Figui..

The outer wall,- as shown, is made up chiefly of bricks or blocks i3 that need not and seldom will be of tire clay or very highly refractory material These bricks are laid in beltsand between the belts are interposed one or Vmore horizontal rows of anchoring channels e preferably of cast iron.

Upright buchtays 5, havinglfbearns, are preferabl used to reinforce and sustain the outer wall, and the inner danges of these tays are ri 'dly connected to the back webs of the. anc oring channels d by nutfurna-ce walls, or l 18 that extend be noted that the-lower `ing channels d have n equipped bolts By reference to lli l, 1t w1l1 be noted that, in this preferre v ar:

rangement, the opposite sides of the inner flange of the buclr'stay 5 spans the joint between` the ends of two adjacent channel beams d and is bolted to both thereof, so that it forms a rigid tie between the two abutting endwise-aligned anchoring` channels. Ars shown, vbut not necessarily, the outer face of the outer wall 3 is covered with a sheet metal casing 7, a portion of which is interposed between the buckstay and anchorinr channels.

- lfhe inner wall is built up chiefly of hre bricks or highly refractory; blocks 8 laid in belts and, between the belts, one or' more horizontal layers of tie blocks 9, that are preferably longer,l thicker and wider than the lire bricks 8. rlhe two walls are spaced so as to form a wide air chamber or channel 10. The outwardly projecting endsk of the anchoring blocks 9 extend preferably .about .halwa through while they are reduced in width, are :formed with T-shaped heads l1. To more securely loch the adjacent blocks 9 together, they are shown as formed with interlapping waved or serrated adjacent edges 12.

For cooperation with the tie blocl 9, there is provided a second series of tie blocks from the anchoring channels 4 into the air space 10 and are formed with T-shaped heads 14 loosely interlapped but interlocked with the 'IT-shaped heads ll ot Said blocks 9. 'The outer ends of the tie blocks 13 are extended into and seated within the anchoring channels d. Here it will danges ol the anchorstanding loch ribs l5 that engage locknotc es in the under sides of the blocks 13. To hold the inner ends oil the blocks 13 seated on the bottom danges oil the anchorin channels lto the cooperating lock ribs l5, 1 rovide wedge blocks 16 that are q uite ti ht 4y pressed between the tops` blocks lor keys i6 against endwisedisplace# ment, l1 have sh own cast metal v:including clips 17 that are seateddirectly on the top the; -air chamber l0, and 4 Hongos ofthe anchorin channels li These clips lZ have grooves t ing; ribs on the upper dan es'o the anchoring channels 4 and, at their inner ends, said at engage upstand lll) t clips have depending anges that extend beheads that are interla low the tops of the cooperating wedge blocks. rl'lhe arrangement above described brings the anchoring blocks 9 and 13 into an arrangement wit lapped joints and interlocked ends that positively hold the two walis'rom mov-l ing either closer together or farther apart, but afford freely moving vertical joints, such as required to permit'the two walls to naturally and independently adjust themselves to different vertical expanding and contracting movements. Moreover,v the wall described maybe very rapidly laid up and very easily repaired. y

In the wall structure described, the inner and outer walls independently carry their own load and will maintain this function, regardless of expansion, contraction or any other forces that tend to cause the two walls to move vertically, the one in respect to the other. The anc oring channels may take variousforxns and may be cast, rolled, or otherwise produced, but they are preferably castings in which the up er and lower flanges and back or vertica webs are'cast integral.

AWhat I claim is:

l, A wall structure comprising an outer wall and an inner wall, each wall being made u of belts of brick and interpose tie bloc the two walls being spaced and the tie blocks of the two walls projecting into the space between walls and having interlocking ends holding the two walls against lateral shiftingmovements but permitting the two walls to independently move vertically under varying expansion and contraction or other forces.

2. The structure defined in claim 1 in which the tie blocks of the two walls are staggered and are provided with T-sha ed ped and interloc ed in the space between t e two walls. y3. The structure defined in claim 1 in which the outer wall is provided with metal anchoring channels into which the tie blocks A lsaid blocks "are interlocked.

'edgewise aligned anchoring channels,

. lap ing Lacasse of the vouter wall project` and .witlifwhich 4. The structure defined in claim 1 in which the outer wall is provided with metal anchoring channels intowhichthe tie blocks of the outer wall project and lwith which said blocks are interlockedyand in further combination with wedge blocks interposed between the tops of said `latter noted tie blocks and the upper flanges of said channels.

5. The structure defined -in claim 1 in which the outer wall is provided with metal' anchoring channels into which the tie blocks of the outer wall project and with which said blocks are interlocked, and in further combination with wedge blocks interposed between the tops of said latter noted tie blcicks and the upper flanges of said channe s,

and metallic clips interlocked to the.

top flanges of said channels and overlapping the ends of said wedge blocks.

A6. Thel structure defined in claim 1 in which the outer wall is provided with metal anchoringohannelsinto which the tie blocks of the outer wall project and with which said blocks'are interlocked, and in further combination with buckstays at the exterior of the outer. wall and towhich certain of said anchoring channels -are ,connected and anchored. Y

7. A wall structure com rising outer and inner walls, said outer wal being Amade up of belts of bricks and interposed horizontal buck`- stays at the exteriorv of the outer 'wall overwith and secured to the ends of said anc oring channels, tie blocksinterposedf'in the two walls and holding-thetwo walls against lateral movement,. the tie blocks of the outer wall bein anchored in said anc wedge blocks interposed between flanges of the anchoring channels Aand-the underlying blocks. 1 In testimony whereof I aixmy zignature.

CLARENCE Ar STRAC GTA;

the upper extended into and 

